【文档说明】《Unit 7 What’s the highest mountain in the world Section A》PPT课件6-八年级下册新目标英语【人教版】.ppt,共(57)页,953.000 KB,由小喜鸽上传
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Unit7What’sthehighestmountainintheworld?GrammarFocusWhat'sthehighestmountainintheworld?Qomolangma.HowhighisQomolangma?It's8,844.4
3metershigh.It'shigherthananyothermountain.Whichisthedeepestsaltlakeintheworld?TheCaspianSeaisthedeepestofallthesaltlakes.
DidyouknowthatChinaisoneoftheoldestcountriesintheworld?Yes,Idid.It'smucholderthantheUS.4a.Fillintheblankswit
hthecorrectformsofthewordsinthebox.1.TheAmazonRiverisoneofthe_________riversintheworld.It’salittle________thantheYangtzeRiver.2.Qomolangmais
8,844.43meters_______.bigmuchpopularlongoldhighlongestlongerhighIt’soneofthemost__________placesforseriousmountainclimbers.3.No
oceanintheworldisas________asthePacificOcean.4.AlthoughJapanis__________thanCanada,itis_________smaller.popularbigoldermuche.g.Tworivers:_____
____________and_______________________________________________________________________________________
_________________________________________________________4b.Writetwocomparisonsabouttwotopics.Writetruefacts.
theYangtzeRivertheAmazonRiverTheYangtzeRiverisalmostaslongastheAmazonRiver.TheAmazonislongerthantheYangtze,butt
heYangtzeisthelongestriverinChina.Twocities:__________and__________1.______________________________________2.______
_____________________________________________________________________Twoanimals:__________and__________1._________________________________
_____2.___________________________________________________________________________4c.Writefivequestionsusin
gcomparisons.Thenaskyourpartneryourquestions.1.____________________________________2._________________________
___________3.____________________________________4.____________________________________5.___________________________
_________Whatisthehighestbuildinginourcity?Whoistheoldestpeopleinourcity?Whatisthemostpopularstreetinourc
ity?Whatisthemostdeliciousfoodinourcity?Whereisthebusiestroadinourcity?GrammarFocus(一)数词Numeral数词是用来表示事物的数目和顺序的词。数词的分类:1.基数词2.序数词3.分数词今天我们先来学习一下基数词。1
.复习1—100以内的所有数字。2.掌握百、千、万、十万、百万的表达法。1、1-19的基数词one1two2three3four4five5six6seven7eight8nine9ten10eleven11twelve
12thirteen13fourteen14fifteen15sixteen16seventeen17eighteen18nineteen192、20—90等十位数twenty20thirty30forty40fifty50sixty60seventy70ei
ghty80ninety90twenty-one21twenty-two22………………其它的十位数照此类推,如:thirty-one31forty-two42seventy-five75ninety-six963、百、千、万百h
undred100onehundred200twohundred以此类推····千thousand1000onethousand2000twothousand·········英语里没有“万”这一单位,万也用thousand表示。如:10000tenthousand一万20000twe
ntythousand两万·····4、十万、百万十万的说法是:100.000a(one)hundredthousand200.000twohundredthousandmillion百万a(one)million1,000,000twomill
ion2,000,000········以此类推······8,000,000eightmillion练一练345100118,657,421threehundredandforty-fiveonethousand(and)oneeighteenmillion,sixhundredandf
ifty-seventhousand,fourhundredandtwenty-one1.Theprojectlasted5yearsandcost2billiondollars.2.TheChinesehavebeenmakingpaperfortwothousandyears.3
.Onethousandpoundsisalotofmoney.表示确定数量时用基数词+hundred,thousand,million,billion多位基数词读法457890608389threehundredandeighty-ninefourhundredandfifty-seve
neighthundredandninetysixhundredandeight1)101~999的三位数由“百位数+and+两位数组成”。如:325—threehundredandtwenty-five102onehundredandtwo635sixhundredandthi
rty-five2)三位数以上的数,从个位往前数,每三位数加一个逗号,从后往前数的第一个逗号代表thousand,第二个逗号代表million,第三个逗号是billion,注意这几个词不能用复数形式,后也不能加and。例如:2,648twothousand,sixhundredandf
orty-eight16,250,064sixteenmillion,twohundredandfiftythousand,sixty-four确切数目与不确切数目的表达:hundred,thousand,million,billion等前面有基数词,表示确切数目时
,用单数,后直接接复数名词;如:threehundredbooksonehundredpeoplefivethousandstudentssevenmillionstarts表示不确切数目时,这类词后加-s且
与of连用。如:hundredsofpeoplethousandsofstudentsmillionsofbirdsbillionsoflions注意:这类短语中,名词前如有定冠词、指示代词或形容词性物主代词时,可加of,但表示的是范围。如:twohundredofthe
workers工人中的二百(人)GrammarFocus(二)形容词的比较级和最高级comparativesandsuperlativeswithadj.andadv.short-shortersmall-smallernicenicersaf
esafer------bigthinheavyheavierhappyhappierbigbiggerthinthinnerdelicious–moredeliciousinteresting–moreinterestingimportant—m
oreimportantcarefully---morecarefullyquickly---morequicklyslowly---moreslowlyeasily---moreeasily大多数形容词和副词有三个等级:原级、
比较级、最高级。一、形容词比较级的构成1.构成的不规则变化:2.构成的规则变化:1.构成的不规则变化:e.g.good/well–better–bestbad/badly–worse–worstmany/much–m
ore–mostlittle–less–leastfar–farther/further–farthest/furthest2.构成的规则变化:1)单音节词和少数双音节词一般在词尾后加-er构成比较级或-est构成最高级.如:原级比较级最高级c
old–——colder–——coldestbright———brighter———brightestyoung——younger——youngest2)以字母e结尾的词只加–r或-st构成比较级和最高级。原级比较级最高级ni
ce———nicer–———nicestfine———finer————finestlarge——larger————largest3)重读闭音节词末尾只有一个辅音字母时,先双写这个辅音字母,再加-er或-e
st。如:big–bigger–biggestthin–thinner–thinnest4)以“辅音字母+y”结尾的双音节词,先改y为i,再加-er或-est。如:easy–easier–easiesth
appy–happier–happiest5)多音节词和部分双音节词在词前加more或most。如:delicious–moredelicious–mostdeliciousinteresting–moreinteresting–mostin
terestingimportant—moreimportant—mostimportantcarefully---morecarefully--mostcarefullyquickly---morequickly---mostquicklyslowly---m
oreslowly---mostslowlyeasily---moreeasily---mosteasily形容词最高级的构成A:tallshortquickthicklightcoolwarmquie
twildcalmthe--esttalltallertallestB:heavyeasytidydrybusyhappyhealthyhungryearlyy--i--estC:largelatenice--stbiggestD:bighothottestthin“双写”th
innestwetwettestfatfattestAdjectivedeliciousdangerousinterestingpopularbeautifulcarefulfriendlythemost--adj.Adjecti
vebetterbestfarlittleworseworstmoremostfartherfarthestlessleastgoodwellbadbadlymanymuch1.good2.comfortable3
.big4.happy5.cheap6.many7.difficult8.littlebetterbestmorecomfortablemostcomfortablebiggerbiggesthappierhappiestche
apercheapestmoremostmoredifficultmostdifficultlessleast1.用法:英语中三者或三者以上相比较,表示“最……”这样的最高程度概念时,要用“the+最高级”的结构表示。这种句式一般带有表示比较的介词短语
,比如:inourclass,ofthethree等。例如:WangLinisthetallestinourclass.Thistheateristhecheapestofthethree.注意使用最高级时应注意以下几点:形容词的最高级(1
)表示“最……之一”的句式,要用oneofthe+形容词最高级+复数名词。例如:JingjiangHotelisoneofthebiggesthotelsinourcity.Lisaisnotoneofmybes
tfriends.(2)当最高级前面有物主代词或名词所有格时,不加定冠词the。例如:TomisLucy’sbestfriend.Tuesdayisherbusiestday.(3)最高级前可加序数词。例如
:TheYellowRiveristhesecondlongestriverinChina.(4)形容最高级修饰作表语或介词宾语的名词,代词时,被修饰的词往往省略。例如:Heisthelaziest(student)inourclass.2.形
容词比较级和最高级的构成(1)规则变化a.一般情况下,单音节或双音节的形容词比较级直接加-er,最高级直接加-est。如:clever—cleverer—cleverestcheap—cheaper—cheapestfew
—fewer—fewestsmall—smaller—smallestyoung—younger—youngestb.以-e结尾的形容词,比较级+-r,最高级+-st。如:large—larger—largestnice—nicer—nicestcute—cuter—cutestc.以辅音字母
+y结尾的形容词,变y为i+er或+est。busy—busier—busiestheavy—heavier—heaviesteasy—easier—easiesthappy—happier—happiestdirty—dirtier—dirtiestd.以重读闭音节结尾,末尾只有一个辅音字母结尾
的词,双写最后一个辅音字母,再加+er或+est。如:big—bigger—biggestthin—thinner—thinnestfat—fatter—fattesthot—hotter—hottest
e.多音节和部分双音节形容词,需在原级前+more构成比较级,+most构成最高级。如:important—moreimportant—mostimportantbeautiful—morebeautiful–mostbeautifuldi
fficult—moredifficult—mostdifficult3.不规则变化:原级比较级最高级good/wellbetterbestbad/illworseworstlittlelessleastm
any/muchmoremostfarfarther/furtherfarthest/furthestoldolder/elderoldest/eldest最高级规则变化口诀:最高级,很容易,一般词尾加est。(cheap-thecheapest)词尾若有哑音e,直接
就加st。(close-theclosest)重读闭音节,单辅音字母要双写。(big-thebiggest)辅音字母加y,记得把y变为i。(friendly-thefriendliest)多音节,考考你,themost到底加哪里?(popular-themostpopular)1.Wear
egoingtotheGreenRestaurantforlunch.(就划线部分提问)____________yougoingforlunch?2.Samistheshortestinhisclass.(改为同义句)Samis________than_________studentinhis
class.Samis_______than__________studentsinhisclass.Samis_______than______________inhisclass.3.HowdoyoulikeScreenCity?(改为同义句)_______
doyou__________ScreenCity?WhereareshorteranyotherWhatthinkofshortertheotheranyoneelseshorter练习:改写句子TheComparativeSuperlativeDegreesofAdjectives&Ad
verbs总结形容词和副词比较级和最高级latelater-latestearlyearlier–earliestbigbigger-biggestfluently/difficultmore~,most~重读闭音节、末尾只有一个辅音字母双写加–er或–est单音节词在
词尾比较级加-er或最高级加-est以e结尾的词,只需加-r或-st以辅音字母加y结尾双音节词变y为i加–er或–est部分双音节和多音节词在原级前加more或most少数以er,ow结尾的双音节词加-er-esttalltaller-tallest
clevercleverer-cleverestcheap,cold,small,warm,young,highfine,nice,safehappy,busy,dirty,easy,lazy,prettyfat,hot,red,thin,wet,
sadnarrow,yellowquickly,slowly,useful,careful,popular,modern,形容词和副词比较级和最高级构成(规则变化)不规则变化good/well–bette
r-bestmuch/many–more-mostbad/badly/ill–worse–worstlittle–less–leastfar–farther/further–farthest–furthe
stold–older/elder–oldest/eldest形容词和副词比较级的用法1.Whorunsfaster,heorshe?2.Herunsfasterthanshe.3.Herunsmuchfasterthanshe.4.Hebecomeshealthierandhealthi
er.5.Themoreyouexercise,thehealthieryouwillbe.6.Sheislesshealthythanhe.1.表示两者之间的选择,可用“Which/Who…+比较,…or…?”.2.表示两者之间的比较,通常用连词than引
导,表示“更······一些”.3.much/far/alot,even,still,alittle/abit…修饰比较级,表示程度.Whorunsfaster,heorshe?Herunsfastertha
nshe.Herunsmuchfasterthanshe.4.“比较级+and+比较级”表示“越来越……”5.“the+比较级,the+比较级”表示“越…,越…”6.表示不及另一方时,用“less+原级+than…”(双音节和多音节词)Hebecomesh
ealthierandhealthier.Themoreyouexercise,thehealthieryouwillbe.Sheislesshealthythanhe.Heishealthierthanshe.Shanghaiisbeco
mingmoreandmoremodern.1.比较级+and+比较级越来越…2.the+比较级,the+比较级越…,越…3._______________youare,_________mistakesyouwillmake.(你越仔细,
做错的题目就越少)4.__________youeat,_________you’llbe.(你吃得越多,就越胖)5.Alicewriteswell.Marywrites_________________thanshe.(甚至更好)Themorecarefult
hefewerThemorethefatter1.Thegirlbecomes______________________.(越来越漂亮)moreandmorebeautiful2.Theweatherisgetting_________________.(越
来越槽糕)worseandworseeven/stillbetter1.表示三者或三者以上比较,可用”Which/Who…+最高级,…,…or…?”表示.2.最高级+of/among(同类比较)in…(范围比较)4.oneof+
形容词最高级+名词复数表示“最…之一”3.序数词修饰最高级形容词和副词的最高级的用法Whoisthetallest,Tom,Mike,orJack?Tomisthetallestofthethree.Mikeisthesecondtallest
studentinourclass.Jackisoneofthetalleststudentsinourclass.Tomruns(the)fastestinourclass.3.LinTaois__________________________intheclassbecausehenev
ergetstoschoolontime.(最懒的学生之一)4.Edisonwas_________________________intheworld.(最伟大的发明家之一)oneofthelazieststudentsoneofthegreatestinven
tors1.TheYangtzeRiveris__________________riverintheworld.(第三长河)thethirdlongest2.TheAtlanticis__________________oceaninth
eworld.(第二大洋)thesecondbiggestExercise:一、翻译句子:二、同义句转换1.FlatAismoreexpensivethanFlatBFlatBis______________
_thanFlatA.FlatBis_______________FlatA.FlatBisnot_________________FlatA.2.IprefermathstoEnglish.Ilikemaths__________________English.bett
erthan3.Heisthetalleststudentintheclass.Heis______________________________intheclass.tallerthananyotherstudentanyother+名词单数lessexpensivec
heaperthanasexpensiveas1.HainanisaverylargeIsland.Itisthesecond_________islandinchina.(large)2.Ourteacher
isas______asbefore.(busy).3.Heis______________amongus.(careful)4.LiLeijumpedfar______thanJim.(far)5.Thebusierheis,
the________hefeels.(happy)6.IthinkYaoMingisoneof____________basketballplayersinNBA.(hot)busythemostcarefulfartherha
ppierlargestthehottest三、完成句子HomeworkPracticewithyourclassmatestospeakandwritelargenumbers.Writesomenumbercarsan
dputtheminyourroom.Wheneveryousee,readthemquickly.